package com.cool.collect.springcode.a03;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.BeansException;
import org.springframework.beans.PropertyValues;
import org.springframework.beans.factory.config.DestructionAwareBeanPostProcessor;
import org.springframework.beans.factory.config.InstantiationAwareBeanPostProcessor;
import org.springframework.stereotype.Component;

/**
 * @author xiemiao
 * @description bean后处理器
 * @date 2023/08/25
 */
@Component
public class MyBeanPostProcessor implements InstantiationAwareBeanPostProcessor, DestructionAwareBeanPostProcessor {

    private static final Logger log = LoggerFactory.getLogger(MyBeanPostProcessor.class);

    @Override
    public void postProcessBeforeDestruction(Object bean, String beanName) throws BeansException {
        if (beanName.equals("lifeCycleBean")) {
            log.info("<<<<<<<<<销毁之前执行，如@PreDestroy>>>>>>>>>>");
        }
    }

    @Override
    public Object postProcessBeforeInstantiation(Class<?> beanClass, String beanName) throws BeansException {
        if (beanName.equals("lifeCycleBean")) {
            log.info("<<<<<<<<<<实例化之前执行，这里返回的对象会替换掉原本的bean>>>>>>>>>>>>>");
        }
        return null;
    }

    @Override
    public boolean postProcessAfterInstantiation(Object bean, String beanName) throws BeansException {
        if (beanName.equals("lifeCycleBean")) {
            log.info("<<<<<<<<<<实例化之后执行，这里返回false会跳过依赖注入阶段>>>>>>>>>>>>");
        }
        return true;
    }

    @Override
    public PropertyValues postProcessProperties(PropertyValues pvs, Object bean, String beanName) throws BeansException {
        if (beanName.equals("lifeCycleBean")) {
            log.info("<<<<<<<<<<依赖注入阶段执行，如@Autowired, @Value,@Resource>>>>>>>>>>>>");
        }
        return pvs;
    }

    @Override
    public Object postProcessBeforeInitialization(Object bean, String beanName) throws BeansException {
        if (beanName.equals("lifeCycleBean")) {
            log.info("<<<<<<<<<<初始化之前执行，这里返回的对象会替换掉原本的bean，如@PostConstruct, @ConfigurationProperties>>>>>>>>>>>>");
        }
        return bean;
    }

    @Override
    public Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException {
        if (beanName.equals("lifeCycleBean")) {
            log.info("<<<<<<<<<<初始化之后执行，这里返回的对象会替换掉原本的bean，如代理增强>>>>>>>>>>>>");
        }
        return bean;
    }
}
